Chemistry, asked by pradeepshankar1004, 2 months ago

Why are you adding ammonia buffer in the estimation of hardness of water by EDTA method? ​

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Answered by burhankareem63
0

Answer:

But both EDTA and the indicator are themselves weak acids, therefore a buffer solution such as ammonium hydroxide-ammonium chloride buffer, which is able to maintain a fairly constant pH even when acids and bases are added, is used.

Answered by mahwishnaz072021
0

Here is your answer...

Both EDTA and the indicator are themselves weak acids, therefore a buffer solution such as ammonium hydroxide-ammonium chloride buffer, which is able to maintain a fairly constant pH even when acids and bases are added, is used.

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